Kamaru Usman will face one of the biggest fights of his career this October when he takes on Khamzat Chimaev in the highly anticipated UFC 294 main event.

The former welterweight champion replaced Paulo Costa after the Brazilian fighter pulled out of his middleweight clash with unbeaten phenom Chimaev due to health concerns.

According to CBS Sports, Usman will move up to 185 pounds for the first time in his career to face one of the most feared opponents in the sport, who has a record of 12 wins and zero defeats.

The Nigerian has now been rated as the underdog heading into the UFC clash with Chimaev as punters have given the 36-year-old a +230 rating, the first time he has been ranked that low since 2019.

Usman was last ranked as an underdog in his 2019 bout against Tyron Woodley, which the Nigerian won to become the UFC welterweight champion.